Not A Photo!!! Need help

Hi so I’m dog sitting this week and the dog ate an entire box of Temptations cat treats yesterday afternoon and is now having wet diarrhoea (24 hrs later). Should I be worried? Is he going to be ok? He doesn’t seem to be in any other discomfort. He’s eating regularly and is as happy as he usually is. Also, sorry I posted on this forum there’s no dog owners one with a lot of people on it. Thanks in advance.